ABSTRACT Powder metallurgy (PM) technology is an ideal manufacturing process to produce near net shape parts i.e. part that requires little or no machining, examples of PM processes are spark plasma sintering, isostatic pressing and additive manufacturing. PM allows maximisation of materials and produces part with optimised mechanical and physical properties. Also, PM process provides the possibility to further increase the industrial use of PM parts by fabricating it into complex geometrical shapes via joining. Joining is the most important mechanical process necessary for PM parts to perform in actual service conditions expected in automobile parts and structural parts. Despite apparent advantages of PM processes, joining PM parts has been a tedious process, due to challenges associated with inherent characteristics, like porosity, chemical composition and impurities like oil or grease, which tend to impair the weldments property. In this document, a review of PM process is presented, focusing on different welding methods that can be used to effectively join PM components.

中文翻译：

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粉末冶金工艺与金属合金焊接的协同作用：综述

摘要粉末冶金 (PM) 技术是一种理想的制造工艺，可生产近净形状零件，即几乎不需要或不需要加工的零件，粉末冶金 (PM) 工艺的例子是放电等离子烧结、等静压和增材制造。PM 可以最大限度地利用材料并生产具有优化机械和物理性能的零件。此外，PM 工艺通过连接将其制造成复杂的几何形状，为进一步增加 PM 零件的工业用途提供了可能性。接合是 PM 零件在汽车零件和结构零件预期的实际使用条件下执行所需的最重要的机械过程。尽管 PM 工艺具有明显的优势，但连接 PM 部件一直是一个乏味的过程，因为与固有特性相关的挑战，如孔隙率、化学成分和杂质，如油或油脂，往往会损害焊件的性能。在本文档中，对 PM 工艺进行了回顾，重点介绍了可用于有效连接 PM 组件的不同焊接方法。